I think Nathan hit it right on the head.
The market will dictate. If someone wants a convenient point of reference for there build, this could be it. Often during my current build I wished there was a physical guide I could flip thru quickly, write down notes in, etc. I thought about printing some of my favorite tutorials out, but didn't because of the insane amount of paper and color ink it would take.
Is it worth $15? Again, the market will dictate.
I believe *the tk in question* has contributed countless hours of service, research, quality products, and tutelage (1999 posts worth!) to our little hobby here. I can't fault him for trying something new. I'm just grateful that it is his tutorial being offered because at least I know it is a top notch guide.
That's my 2 cents anyway...
Can we get back to talking about the wonders of E6000, finding the perfect T-track, and preparing for C5 now?